Granulated blast furnace slag (GBFS)
EC number: 266-002-0
CAS number: 65996-69-2
EINECS number: 266-002-0
EC Name: Slags, ferrous metal, blast furnace
Chemical composition and properties of GBFS
Indicator name | Indicator name |
Calcium oxide (CaO), % | within 40.0% – 51.0% |
Silicon dioxide (SiO2), % | within 35.0% – 45.0% |
Aluminum oxide (Al2O3), % | within 4.0% – 10.5% |
Magnesium oxide (MgO), % | within 2.5% – 5.5% |
Titanium dioxide (TiO2), % | < 3% |
Manganese oxide (MnO), % | within 0.05% – 1.0% |
Granulometry (min-max size) | 0.0mm – 5.0mm |
Uses: Granulated blast furnace slag (GBFS) has cementitious properties and is therefore used as a hydraulic binder for cement, concrete, mortar. For this purpose, it is ground (alone or together with Portland cement clinker and calcium sulfate) and is called ground granulated blast furnace slag (GGBS). GBFS can also be used as an aggregate, for example in road construction.
Trade names:
🇬🇧 English: Granulated Blast Furnace Slag, Granulated Blast‑Furnace Slag (GBFS), Ground Granulated Blast‑Furnace Slag (GGBFS/GGBS), Blast Furnace Granulated Slag, Water‑quenched blast‑furnace slag
🇩🇪 Deutsch: Granulierte Hochofenschlacke, Hüttensand, Hüttensandmehl, Hüttensandgrieß, Luftgekühlte Hochofenschlacke
🇮🇹 Italiano: Loppa d’altoforno granulata, Loppa d’altoforno in pezzatura, Scoria d’altoforno granulata, Granulato di scoria d’altoforno, Scoria granulata d’altoforno (GGBFS)
🇷🇴 Română: Zgură granulată de furnal, Zgură de furnal granulată, Zgură de furnal granulat, Granulat de zgură de furnal, GBFS / GGBFS